Safety razor



Feb. 19, 1935. H, E 3 WHEELER 1,992,107

SAFETY RAZOR Filed June 16, 1933 2 Sheets-Sheet l INVENTOR HoratioF.deC.Wheeler ATTORNEY Feb. 19, 1935.

H. F. DE C. WHEELER SAFETY RAZOR Filed June 16, 1933 2 Sheets-Sheet 2 F.17 F .19 F .22 i .h 6 M531 #6 L5? 37 53 INVENTOR ATTORNEY Patented Feb.19, 1935 a "3Q:UNITEDIASYTATESF PATENT F 'H0ratio Francis de CourcyWheeler, Greenford, England 3 Claims. (01.30 12) This inventionrelatesto that type of safety razoremploying a square blade, with each edgeformed as a cutting edge, the transversely curved clamping plate andtoothed or other guard being so constructed as to protect two oppositecutting edges when the whole are assembled, and allow of the other twoopposite cutting edges of the blade being positioned for use.

,Forthe purpose of my invention, the square bladewith each of its fouredges as cutting edges is formed with a large square or approximatelysquare opening at the centre with the surround narrower than the widthof the opening, and at the corners or sides'I form recesses, suchrecesses leading into the opening, or I may form the opening, square orthe like and plain i. e. without the recesses at its edge, and byforming the blade with'such: a large opening a better flexing of theblade; when clamped to the plates is obtained without the possibility ofthe blade cracking.

The clamping plate, formed transversely curved as usual, is oblong inshape with twoopposite sides longer than the side of the blade, and theother two oppositev sides narrowerthan the blade and curved, and at thecentre ispositioned the usual screw threaded post, and around thescrewthreaded post is positioned four or it may be two projecting pins,arranged to correspond to and engage their respective recesses or thecor ners of the opening in theblade with a slight clearance whenapplied, or instead of pins I may arrange a recess surrounding the screwpost.

The toothed guard plate is formed curved and provided with holespositioned to receive the four or two pins, or a projection for engagingthe recess in the clamping plate and the screw threaded stem of theclamping plate and is curved to correspond with the curve of theclamping plate and is of the same width as the clamping plate from twoopposite edges, but is provided with teeth or other extensions on'theother two opposite sides which project beyond the two edges of theclamping plate and the curve is between the two toothed edges.

The handle is of the usual internal screw threaded type.

My invention will be more clearly understood from the followingdescription aided by the accompanying drawings in which several examplesof carrying the invention into effect are shown.

Figure 1 is a plan, and Figure 2 a section of a square blade 30 having asquare opening 31 centrally positioned, the opening 31 having a recess32 at each corner, such recesses opening into the square 31.

Figure 3 is. a plan and Figure 4 a side view ofa cruved-clamping' plate33 having a screw threaded stem 34 centrally-positioned and fourprojecting pins 35, these being positioned onthe r clamping plate 33 tocorrespond to the recesses 32 in the blade; l Figure 5 is a planandFigure 6 a section of a curved guard plate 36 which is preferablyoblog and is provided withacentral hole 37 and four other holes 38, thehole 37 being arranged centrally to correspond with the screw stem 34and the holes138' to correspond with the pins 35 and the-teeth 39 alongtwo opposite edges are as usual.

. Figure '7 is an elevation of the parts shown in Figures 1 to 6 withthe handle 40 or the usual construction, and having an internal screwthread 40a-for connection to the stem 34, all the parts are showndetached, but at Figure v8 part sectional elevation, Figure 9 a topplan, part broken away, and Figure 10 an under plan of the bladeclamping. plate, toothed guard plate and handle are positioned togetherfor use as a razor.

Figure 11 is a, plan, and Figure 12 a section of a square blade'30 in which the square opening 31 isprovided with recesses 32 in the end wallsthereof, instead of at the corners.

Figure 13 is a plan and Figure 14 a section of a curved clamping plate33 having the central screw threaded stem 34 and two holes 42 in linewith the stem 34 and corresponding in position with either two of therecesses 32 in the blade 30.

Figure 15 is a plan and Figure 16 a section of a toothed guard plate 36having the centrally positioned hole 37 and two projecting pins 43 inline with the hole 37, and corresponding in position with the two holesin the clamping plate 33.

Figure 17 is an elevation partly in section of the parts shown inFigures 11 to 16 in position with the handle 40 as a razor.

Figure 18 is a plan of Figure 17 with a part of the clamping platebroken away.

In this construction either pair of recesses 32, are in alignment withthe center of the opening in the blade and are positioned over the twopins 43 on the guard plate 36 according to which two edges of the bladerequired to be used, the clamping plate 33 is then positioned, the stem34 passing through the holes 41 and 37 and the holes 42 in the clampingplate engaged with the pins 43 on the guard plate 36, and the handlescrewed on to the stem 34 to hold the blade 30 firmly and flexed betweenthe clamping plate and guard plate.

Figure 19 is a plan and Figure 20 is a section of a blade having asquare opening 31 without holes being formed at the corners as in Figurel, or sides as at Figure 11.

Figure 21 is a plan and Figure 22 a section of a clamping plate 33having a square recess 44 corresponding to the square hole 31 in theblade 30 and centrally positioned is the screw stem 34. Figure 23 is anunder plan, and Figure 24 a section of a guard plate 36 provided with asquare projecting portion 45 corresponding to the hole 31 in the blade30, and Figure 25 is a top plan and Figure 26 a side view of the guardplate shown in Figures 23 and 24.

Figure 27 is a side view of a complete razor partly in sectioncontaining the elements shown in Figures 21 to 26 and Figure 28 is aplan,

partly broken away, of Figure 27.

In these figures, the hole 31 in the blade and recess 44 in the clampingplate 33 and projection 45 in the toothed guard plate 36 correspond insize, and when the handle 40 is connected to the stem 34 with the blade30 and clamping plate 33, the projection 45 passes through the hole 31in the blade 30 and into the recess 44 in the clamping plate 33, andfirmly holds and flexes the blade 30 between them.

In all cases the blade 30 is held curved between the clamping plate 33and the toothed guard 36 which are shaped accordingly and the holes oropenings in the plate and the means on the clamping device are soconstructed that either of two opposite edges of the blade are onlyexposed for shaving purposes whilst the other two are protected, andeither of two opposite cutting edges of the blade can be used forshaving.

It is preferred that the corners of the blade 30 be rounded or squaredofi, so that they can be more easily handled by catching hold of them atthe corners, and in the drawings Ihave shown them squared off as at 46,and to produce a further safeguard I form a head or guard lug47 at eachcorner of the toothed guard plate to engage or enclose these cornerswhen in use.

What I do claim as my invention and desire to obtain by Letters Patentis:-

1. A safety razor having a normally flat blade provided with fourcutting edges equal in length and a relatively large central openingwhose marginal walls are parallel with adjacent cutting edges definingthe solid portions of the blade materially narrower throughout than thewidth of the opening, a guard member having a surface convex in onedirection engaged by the blade, a clamping plate member disposed overthe blade having a blade-engaging surface curved reverse to the firstmentioned surface to flex the blade 2. A safety razor according to claim1 where-' in said plate member has one major dimension longer than theother whereby in usethe plate member covers the two cutting edges of theblade which are arcuate while exposing the remaining cutting edgesthereof.

3. A safety razor having a normally flat blade provided with cuttingedges each equal in length defining a geometrical figure, said bladehaving a relatively large central opening whose marginal walls areparallel with adjacent cutting edges defining the solid portions 01 thebladematetially narrower throughout than the width of the opening, themarginal edges of said opening having equidistant notches thereon, saidblade being cut away across each corner, a guard member having a surfaceconvex in one direction engaged by the blade, a clampingplate memberdisposed'over the blade having a blade-engaging surface curved reverseto the first mentioned suriace'to flex the blade into arcuate form inuse, said clamping plate being cut away across each corner, guard lugson the guard member at each corner adjacent the cut away portions of theblade and clamping plate, blade-positioning means on one of the memberspassing through said opening and notches and interfitted in the othermember and normally preventing relative turning movement V of themembers and blade, a handle, and means of clamping connection betweenthe handle and clamping plate member. V

I-IORATIO FRANCIS n: QOURCY WHEELER.

